1. The product constant temperature: 45°C or so, don't need to keep warm warm can pull out when the plug2. The rated voltage: 5 v3. Current: 450ma or so 4. No driver, support hot plugging dial the function

you could choose the color as your request, and any logo are avaliable.

when using the computer in winter, it is a good choice to protect your hands and make you warm,